It is hard to guess what a Natal multimammate mouse weights. But we have the answer:
An adult Natal multimammate mouse (Mastomys natalensis) on average weights 49 grams (0.11 lbs).
The Natal multimammate mouse is from the family Muridae (genus: Mastomys). It is usually born with about 1 grams (0 lbs). When reaching adult age, they grow up to 6 cm (0′ 3″). On average, Natal multimammate mouses can have babies 1 times per year with a litter size of 5.
As a reference: An average human weights in at 62 kg (137 lbs) and reaches an average size of 1.65m (5′ 5″). Humans spend 280 days (40 weeks) in the womb of their mother and reach around 75 years of age.

The Natal multimammate mouse (Mastomys natalensis) is a species of rodent in the family Muridae. It is also known as the Natal multimammate rat, the common African rat, or the African soft-furred mouse.
Animals of the same family as a Natal multimammate mouse
We found other animals of the Muridae family:
- Gerbil mouse with a weight of 17 grams
- Mesquite mouse with a weight of 40 grams
- Euryoryzomys legatus with a weight of 61 grams
- Thomas’s Oldfield mouse with a weight of 77 grams
- Indian hairy-footed gerbil with a weight of 26 grams
- Mitchell’s hopping mouse with a weight of 42 grams
- Fawn-colored mouse with 4 babies per litter
- Bower’s white-toothed rat with a weight of 355 grams
- Stolička’s mountain vole with a weight of 30 grams
- Tatra pine vole with 2 babies per litter
Animals with the same weight as a Natal multimammate mouse
As a comparison, here are some other animals that weight as much as the Mastomys natalensis:
- Robbins’s tateril bringing 47 grams to the scale
- Hildegarde’s broad-headed mouse bringing 55 grams to the scale
- Chiruromys lamia bringing 47 grams to the scale
- Cape elephant shrew bringing 49 grams to the scale
- Lesser musky fruit bat bringing 47 grams to the scale
- Yellow-footed antechinus bringing 44 grams to the scale
- Nayarit mouse bringing 40 grams to the scale
- Naked-eared deer mouse bringing 40 grams to the scale
- Large vesper mouse bringing 45 grams to the scale
- Four-striped grass mouse bringing 40 grams to the scale
Animals with the same size as a Natal multimammate mouse
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Natal multimammate mouse:
- Vagrant shrew with a size of 6.4 cm (0′ 3″)
- Desert long-eared bat with a size of 6.4 cm (0′ 3″)
- Shinto shrew with a size of 6.3 cm (0′ 3″)
- Japanese dormouse with a size of 7.2 cm (0′ 3″)
- Delicate vesper mouse with a size of 6.9 cm (0′ 3″)
- Olive-backed pocket mouse with a size of 6.9 cm (0′ 3″)
- Jamaican flower bat with a size of 7 cm (0′ 3″)
- Trowbridge’s shrew with a size of 6.3 cm (0′ 3″)
- Tundra shrew with a size of 6.8 cm (0′ 3″)
- Long-tongued nectar bat with a size of 6.8 cm (0′ 3″)
Animals with the same litter size as a Natal multimammate mouse
Here is a list of animals that have the same number of babies per litter (5) as a Natal multimammate mouse:
